proficiency

Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

n. The state or quality of being proficient; competence.

from Wiktionary, Creative Commons Attribution/Share-Alike License

n. Ability, skill, competence.

n. Knowledge.

from The Century Dictionary and Cyclopedia

n. Advancement; progress.

n. The state of being proficient; the degree of advancement attained in any branch of knowledge; advance in the acquisition of any art, science, or knowledge; improvement: as, to attain great proficiency in Greek or in music.

Even if greater gains in proficiency are not made in later years, it is generally accepted that a stable faculty is one characteristic of a healthy, well performing school and that high teacher turnover is detrimental.

This study demonstrated that reading attitudes transfer from first to second language but as distinct from transfer of reading abilities and strategies, the influence of second language proficiency is much weaker.